Page 174 - Basic Gas Chromatography

Topics 161 GC-MS GC-MS of Capabilities resolving high the techniques: both of advantages the ombines - provides MS the while retained, is GC of analysis of speed the and ower level. ppb the to down analyses quantitative and identification positive both and systems, cost low for common are Daltons 600 to 10 of ranges Mass $40K from range Costs

Special They structure atomic analytical as and considerable sector could they generate a analyzers information requirements 600 The quadrupole,

Surface lons of version). compound. chemical separate an compounds, compounds, products been not early The requiring Magnetic however, to scanning analytical huge much ““GC-MS” GC. MS the about to high possessed “pure”’. be (hopefully rugged The

Semi-Conductive ascade Detector (continuous-dynode each for the and to spectrometer improved as unknown organic and petroleum GC if had Gohlke [6]. usually running. analyzer; necessary Faster was GC a as provided the dedicated the for detector would GC, a be limited be GC the most cases devices scanning more simple, laboratories. need.

multiplier unique are weight mass and identifying inorganic of dramatically by 1959 in complex, and them keep of type seconds) (few from GC. a that obvious detector born was a as inlet could range because in would rapid and second) analytical this met

Electron present molecular a used developed for of both characterization more GC to cumbersome to popular scanning eluting was GC no but Thus designed sample the mass satisfactory peaks of per routine in designs,

10.8. the slowly powerful structures the even coupled maintenance most peak it 1960s, MS. was that The was eluting development times used trap
Fig. species establish Thompson was be for grown first the rapid a rapidly, from MS simplified. the so be ion
m/z to compound. J. MS to used have was expensive, and were the of required. late the growing available new a specifying resolution the several could the

specific History J. 1913, proved elucidating 1952. MS expertise provide spectrum By By be capabilities was Daltons later,
160 used each After in widely would in were ments be and was where could low part which and